Press



June 22, 1965 H. H. ADAMS EI'AL 3,190,214

PRESS Filed March 4, 1963 3 INVENTOR5 a- 2 BY mcrz'i'zufmmm ATTORNEYUnited States PatentOT PRESS Harry H. Adams, Winnetka, and Melville E.Lawrence, Arlington Heights, 111., assignors to Parker-HannifinCorporation, Cleveland, Ohio, a corporation of Ohio Fiied Mar. 4, 1963,Ser. No. 262,630

2 Claims. (Cl. 100-214) This invention relates to fluid pressureoperated presses of the type having a base, an upright, and a fluidpressure operated cylinder mounted on the npright. The cylinder has apiston therein movable by the fluid and the piston has a rod or ramattached thereto and projecting from the cylinder opposite the base, thespace between the ram and base being commonly referred to as a gap.

In presses of this type it is sometimes desirable to adjust the gap toefiiciently accommodate the operation to be performed by the press byraising or lowering the cylinder with respect to the'base. It is anobject of the present invention to provide a press in which suchadjustment may be'readily accomplished. t

It is an other object to provide apress of the type described in whichthe press includes a head member which carries the cylinder and allother functioning parts of the press, other than the manually actuablecontrols, and in which'the head member is supported by'the column andmay readily be vertically adjusted thereon.

It is another object to providea-pre'ss of the type described in whichthe cylinder is mounted on a vertically adjustable head member and thehead member provides a means for guiding the cylinder ram.

Other objects of the invention will be apparent from the followingdescription and from the drawings in which:

FIG. 1 is a perspective view of the press,

FIG. 2 is a side view, and

FIG. 3 is a .top view.

The press has a baselll having welded thereto a hollow upright 11 whichis rectangular in cross section with each pair of. the opposite sides ofthe column being parallel. In other words, side face 12 is parallel withopposite side face 13 and front face '14 is parallel with rear face 15.

Mounted on upright 11 is a head assembly generally indicated as 16. Itincludes a front plate or bracket member 17 which fits flat againstfront face 14 and rear plate or bracket member 18 which fits flatagainst back face 15. The plates are attached to each-other and held inposition on column 11' by four bolts 19, there being one of such boltsat each corner of plate 17. Bolts 19 fit snugly against side faces 12and 13 of the upright and one end of each bolt is threaded into tappedopenings in plate 17. The other ends of bolts 19 pass through plate 18and are secured by nuts 20.

Welded to plate 17 are a pair of brackets 23, 24 and bolted to thebrackets is a plate 25 which serves as a closure head for a fluidpressure cylinder 26. The cylinder 7 has another closure head 27 held inplace by tie rods 28 which pass through head members 25 and 27. and aresecured by nuts 29.

Cylinder 26 has a piston 33 therein and attached to this piston is a rodor ram 34 which projects through a central opening in cylinder head 25.Clamped between a shoulder on ram 34 anda nut 35 is an arm 36 whichrigidly carries a guide pin 37 and the latter projects through anopening in a plug 38 which is welded to plate 17.

Mounted on the rear side of plate 18 is a control valve 43, a filter 44,a pressure-regulator 45, and an air line lubricator 46. r The filter 44has a port for connection to a conduit 47 for supplying air underpressure. Pressure regulator 45 connects to the downstream side offilter 44 and the outlet side of the pressure regulator is connected toan inlet port for lubricator 46. The latter contains a v cylinder 26.The valve also has an exhaust port to which an exhaust conduit 53 may beconnected. The solenoid valve 43 is controlled by means of manuallyoperated switches 54, 55. The parts are so arranged and connected thatactuation of switch 54 will cause valve 43 to operate so as to connectits inlet port with hose for admitting air under pressure above piston33 to move the latter and ram 34 downwardly. At the same time, valve 43connects hose 49 leading from the lower side of piston 33 to exhaustline 53. Upon actuation of switch the position of valve 43 is reversedso as to connect the inlet port therein with hose 49 for admitting airunder pressure to the lower side of piston 33 and for connecting hose 50with exhaust conduit 53, thus causing piston 33 and ram 34 to retract orraise. During such lowering and raising movement of ram 34 the latter isguided and supported by guide pin 37 in lug 38.

When it is desired to adjust the gap between cylinder 26 and base ltl,nuts 29 are loosened and the entire head assembly is moved upwardly ordownwardly, as the case may be, and nuts 20 are then retightened. Whenthe nuts are tightened the head assembly retains its position on upright11 by frictional engagement of plates 17 and 18 with front and backfaces 14 and 13 of upright 11.

The engaging faces of plates 17 and 18 on upright 11 are wide and flatso as to accurately and rigidly hold the head against frontward orbackward tipping.

Bolts 19, being snugly against opposite sides 12 and 13 of upright 11,and being .vertically spaced a substantial distance from each other,effectively prevent sideward tilting or tipping of the head assembly.

In this manner a press construction is provided in which the headassembly may be quickly and easily adjusted in its vertical position onthe upright and when anchored in place is firmly supported by the fourfaces of the upright against tilting in any direction. The faces of theupright provide guide surfaces without requiring expensive machin- :ingor extra parts and the entire construction is simple and inexpensive.Although the press illustrated is arranged for pneumatic operation, itis evident that the valve and other units attached to plate 18 can bereplaced by a valve and other parts for operating cylinder 26 with ahydraulic fluid" Likewise, other changes may be made in the detailconstruction or operation of the press within the scope of the inventionas claimed.

We claim:

1. In a press, a base, an upright on said base having parallel sidefaces and parallel front and rear faces, a first plate engageable withsaid front face, said first plate carrying a fluid pressure cylinder; :1ram within rsaid cylinder extending therefrom'and movable byifiuidpressure, a second plate engageablelwith said rear face, said second aplate carrying means for controlling flow of fluid to said cylinder, anda pair of bolt means on eachside of said upright connecting saidplates'and being operative releas ably to clamp said first plate againstsaid front face and said second plate against said rear face in selectedpositions along said upright, said bolt means in each pair being averticallyspaced a substantial distance from each other and engagingsaid side faces for locating the sidewise position of said plates onsaid upright.

ing forguiding said rain.

'References Cited by the Examiner V UNITED STATES PATENTS 5 6 4,584 r2,372,021 3/45 'Seiden.

FOREIGN PAT NTS 1 1,094,418 12/54fF1'anceL 2.1The press of claim 1 inwhich said first Plate a i 'SCHEELiP'iima'y Examiner V lug provided withan opening connected thereto, and said 15 A E WHJLMUTH Examinfl' 5/67Schube us, 100 2,14xv

1. IN A PRESS, A BASE, AN UPRIGHT ON SAID BASE HAVING PARALLEL SIDEFACES AND PARALLEL FRONT AND REAR FACES, A FIRST PLATE ENGAGEABLE WITHSAID FRONT FACE, SAID FIRST PLATE CARRYING A FLUID PRESSURE CYLINDER, ARAM WITHIN SAID CYLINDER EXTENDING THEREFROM AND MOVABLE BY FLUIDPRESSURE, A SECOND PLATE ENGAGEABLE WITH SAID REAR FACE, SAID SECONDPLATE CARRYING MEANS FOR CONTROLLING FLOW OF FLUID TO SAID CYLINDER, ANDA PAIR OF BOLT MEANS ON EACH SIDE OF SAID UPRIGHT CONNECTING SAID PLATESAND BEING OPERATIVE RELEASABLY TO CLAMP SAID FIRST PLATE AGAINST SAIDFRONT FACE AND SAID SECOND PLATE AGAINT SAID REAR FACE IN SELECTEDPOSITIONS ALONG SAID UPRIGHT, SAID BOLT MEANS IN EACH PAIR BEINGVERTICALLY SPACED A SUBSTANTIAL DISTANCE FROM EACH OTHER AND ENGAGINGSAID SIDE FACES FOR LOCATING THE SIDEWISE POSITION OF SAID PLATES ONSAID UPRIGHT.